Display shared versions in project settings (#4357).
Fixes a test broken by r3127.
Fixes broken admin menu extension (#4351).
Fixes Project#shared_versions for descendants sharing (#465).
Translation updates * es (#4286) * sv (#4310)
Remove edit link on wiki page diff (#4346).
Removes the 'Copy' checkbox on the copy/move form.
Ability to add a new version from the issue form (#4315).
Fixed: error when changing tracker on the new issue form (#4345).
Adds translation strings for r3123.
